eastern a booktv author david hurwitz outlines the priorities of the white house that they should focus on his latest book big agenda president trump's plan to save america. >> my fear is republicans going off in their own direction. i am worried about the congress. i am worried about people who do not understand people in the republican leadership who do not understand the political battle. >> send a 6:45 pm eastern harvard history professor david -- provides a history of civil wars. in his book civil wars, history and idea. >> civil war has something atrocious about it. it is fraternal work because it is conducted in a common political unit in because both warring sides at the same time absolutely affirm and deny this common unit. >> go to booktv.org for a complete weekend schedule. >> this weekend on american history to be on c-span three, this saturday we are live from the library of virginia in richmond for an all-day symposium for civil wear monuments. construction and the north and south. then at 8 o'clock, hampden sydney college professor john kearns on how the rise of tobacco c